Self-agitating non-clogging sludge pump

Abstract

The present application relates to a kind of automatic stirring non-clogging sludge pump, solve the problem that the water inlet of prior art is easily blocked, the technical scheme used is: the hub of impeller is conical, the small head end of hub is worn out the water inlet, and there is extension section outside the shell, the blade of impeller is helical centrifugal blade, blade is helically coiled and extends from one end of hub to the other end of the hub, and blade has extension section outside the shell.The effect is: the special structure of impeller (has the function of sludge pump impeller, the extension section of impeller from the water inlet also has the function of stirring sludge, silt), can form extension section outside the water inlet of pump body, extension section forms stirring impeller effect, reaches the purpose of stirring sludge, silt, avoids sludge, silt to block water inlet, uses helical centrifugal blade, not only can improve the effect of stirring sludge, silt, but also be beneficial to improve the working efficiency of sludge pump.

Description

Technical Field

[0001] This invention relates to the field of water pumps, and more particularly to an automatic stirring, non-clogging sludge discharge pump. Background Technology

[0002] Fishponds, sand pits, and other similar locations often contain a lot of silt and sand. If sewage pumps used in these areas are not used for extended periods, the pump inlet can easily become filled with silt and sand. The silt and sand can clump together and clog the inlet, preventing water from being drawn in. A common solution for sewage pumps is to extend the pump shaft outside the pump body and install a chaff cutter on the shaft portion. This design has the following problems: 1. The chaff cutter wears out easily and can easily fall off over time. 2. Assembly is complex, resulting in low production and assembly efficiency, high costs, and inconvenient maintenance and repair. 3. The pump body has a smooth inner wall, and the impeller and pump body only have a clearance fit. Silt and sand can easily get stuck in this gap, causing the impeller to jam and the pump to malfunction. 4. The impeller of this sewage pump has relatively weak wear resistance, is easily worn, and has weak cutting ability. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems existing in the prior art and provide an automatic stirring non-clogging sludge pump. The special structure of the impeller can form an extension section outside the water inlet of the pump body. The extension section forms a stirring impeller effect, which can achieve the purpose of stirring sludge and silt, and avoid sludge and silt clogging the water inlet. The use of spiral centrifugal blades can not only improve the stirring effect of sludge and silt, but also help to improve the working efficiency of the sewage pump.

[0004] The above-mentioned technical objective of this invention is mainly achieved through the following technical solution: an automatic stirring, non-clogging sludge pump, comprising a pump body, an impeller disposed within the pump body, an inlet and an outlet on the pump body, the inlet being positioned at a position corresponding to the axis of the pump body, and the outlet being positioned at a corresponding radial position of the pump body. The impeller hub is conical, with the small end of the hub extending beyond the inlet and having an extension section outside the pump body. The impeller blades are helical centrifugal blades, spiraling from one end of the hub to the other end, with the extension section outside the pump body. This special impeller structure allows for the formation of an extension section outside the pump body's inlet, creating a stirring effect that agitates sludge and sediment, preventing sludge and sediment from clogging the inlet. The use of helical centrifugal blades not only improves the agitation of sludge and sediment but also enhances the working efficiency of the sludge pump.

[0005] As a further improvement and supplement to the above technical solution, the present invention adopts the following technical measures:

[0006] The blades are double-bladed, with both blades having the same helical curvature and axially spaced apart. This double-bladed impeller design further enhances the agitation of sludge and sediment, and improves the efficiency of the sewage pump.

[0007] The blade corresponds to the water inlet position, and the outer diameter of the blade is adapted to the inner diameter of the water inlet.

[0008] The inner wall of the pump body is provided with spiral grooves, which correspond to the corresponding parts of the blades. Typically, the spiral grooves are located on the flow channel of the pump body.

[0009] The inner end of the impeller mates with the oil chamber cover. The side of the oil chamber cover facing the impeller has a groove. There are several grooves, and the grooves are arc-shaped. The grooves are centrally distributed with the axis as the center.

[0010] The impeller is an open impeller, and the impeller includes an impeller cover. One side of the impeller cover mates with the large end of the hub, and the other side of the impeller cover mates with the oil chamber cover.

[0011] The pump body is provided with a support foot at the end away from the motor.

[0012] The impeller is made of 7Cr17MOV. 7Cr17MOV is a special alloy steel with high hardness. Impellers cast with 7Cr17MOV are more wear-resistant and have stronger cutting ability. The extension section of the impeller extending from the water inlet (which serves to agitate the silt and sand and can be called a stirring impeller) is an integral structure with the impeller body. This saves installation and processing costs for producers and makes it more convenient and easier to maintain and repair for users.

[0013] The beneficial effects of this invention are as follows: 1. The special structure of the impeller (which functions as a sewage pump impeller, with the extension extending from the inlet also agitating sludge and sediment) allows for the formation of an extension outside the pump body's inlet. This extension creates an agitating impeller effect, achieving the goal of agitating sludge and sediment, preventing sludge and sediment from clogging the inlet. The use of spiral centrifugal blades not only improves the agitation of sludge and sediment but also enhances the working efficiency of the sewage pump. 2. Spiral grooves are provided on the inner wall of the pump body (flow channel location), corresponding to the corresponding parts of the blades, which helps prevent the impeller from jamming. 3. The impeller is made of 7Cr17MOV special alloy steel, which is hard. Impellers cast with 7Cr17MOV are more wear-resistant and have stronger cutting ability. The extension section of the impeller extending from the water inlet (which plays the role of stirring the impeller and is used to stir up silt and sand, and can be called a stirring blade impeller) is an integral structure with the impeller body. This saves installation and processing costs for producers and makes it more convenient and easier to maintain and repair for users. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one structure of the present invention.

[0015] Figure 2 This is a schematic diagram of an exploded structure according to the present invention.

[0016] Figure 3 This is a cross-sectional structural schematic diagram of the present invention.

[0017] Figure 4 This is a schematic diagram of one structure of the pump body in this invention. Detailed Implementation

[0018] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0019] Example: Figure 1-4 As shown, an automatic stirring, non-clogging sludge pump includes a pump body 1 and an impeller 2 disposed within the pump body. The pump body has an inlet 11 and an outlet 13. The inlet is located at a position corresponding to the axis of the pump body, and the outlet is located at a corresponding position radially. The impeller hub 21 is conical, with its small end extending through the inlet and having an extension section outside the pump body. The impeller blades are helical centrifugal blades 22, spiraling from one end of the hub to the other end, with the extension section outside the pump body. This special impeller structure allows for the formation of an extension section outside the pump body's inlet, creating a stirring effect that agitates sludge and sediment, preventing sludge and sediment from clogging the inlet. The use of helical centrifugal blades not only improves the agitation of sludge and sediment but also enhances the pump's operating efficiency.

[0020] The blade 22 is a double-bladed impeller with the same helical curvature and the two blades axially spaced apart. This double-bladed impeller design further improves the agitation of sludge and sediment and enhances the working efficiency of the sewage pump.

[0021] The blade corresponds to the water inlet position, and the outer diameter of the blade is adapted to the inner diameter of the water inlet.

[0022] The inner wall of the pump body is provided with spiral grooves 12, which are corresponding to the corresponding parts of the blades. Typically, the spiral grooves are located on the flow channel of the pump body.

[0023] The inner end of the impeller mates with the oil chamber cover 3. The side of the oil chamber cover facing the impeller is provided with a groove 31. There are several grooves, and the grooves are arc-shaped grooves. The grooves are centrally distributed with the axis as the center.

[0024] The impeller is an open impeller, and the impeller includes an impeller cover 23. One side of the impeller cover mates with the large end of the hub, and the other side of the impeller cover mates with the oil chamber cover.

[0025] The pump body is provided with a support foot 14 at the end away from the motor.

[0026] The impeller is made of 7Cr17MOV. 7Cr17MOV is a special alloy steel with high hardness. Impellers cast with 7Cr17MOV are more wear-resistant and have stronger cutting ability. The extension section of the impeller extending from the water inlet (which serves to agitate the silt and sand and can be called a stirring impeller) is an integral structure with the impeller body. This saves installation and processing costs for producers and makes it more convenient and easier to maintain and repair for users.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations can be made to the above embodiments. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic stirring non-clogging sludge pump, comprising a pump body, an impeller arranged in the pump body, a water inlet and a water outlet arranged on the pump body, the water inlet is arranged at a position corresponding to the axis of the pump body, and the water outlet is arranged at a position corresponding to the radial direction of the pump body, characterized in that The hub of the impeller is conical, the small end of the hub penetrates the water inlet, and the hub has an extension outside the pump body, the blades of the impeller are spiral centrifugal blades, the blades are spirally wound from one end of the hub to the other end of the hub, the blades have an extension outside the pump body, and the extension of the impeller penetrating the water inlet is in an integral structure with the body of the impeller; The blades are double blades, the spiral curvatures of the two blades are consistent, and the two blades are axially spaced apart; The blades correspond to the position of the water inlet, and the outer diameter of the blades is adapted to the inner diameter of the water inlet; The inner wall of the pump body is provided with a spiral groove, the spiral groove is arranged corresponding to the corresponding part of the blade, and the spiral groove is arranged on the flow channel of the pump body; The inner end of the impeller cooperates with the oil chamber cover, the oil chamber cover is provided with grooves on the side facing the impeller, the grooves are a plurality of arc grooves, and the grooves are centrally distributed with the axis as the center; The impeller is an open impeller, the impeller includes an impeller cover, one side of the impeller cover cooperates with the large end of the hub, and the other side of the impeller cover cooperates with the oil chamber cover; The material of the impeller is 7Cr17MOV.

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